Hermetical-sealing device for boxes, tins, or cans for preserves or for other vessels.



i A. A. ROSENGREN. HERMETICAL' SEALING DEVICE FOR BOXES, TINS, OR 'CANS FOR FRESERVES OR FOR OTHER VESSELS.

APPLICATION FILED )UNEZF, l9i8.

Patentd Mai". 4,1919.

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UNITED STATES PATENT orrion.

ANDERS ANDERSSON nosnnennn, or MALMo, swnnnn.

HERMETICALV-SEALING nnvron non Boxes, TINS, on CANS non rnnsnnvns on FOR 1 owner. VESSELS.

Specification of Letters Patent. I

Patented Mar. 4, 1919.

Application filed June 27, 1918. Serial no. 242,274.

To all whom it may concern:

Be it known that I, ANDERS ANDERSSO N RosENoRnN, asubj ect of the King of Sweden,

and resident of 7013 'Sodra Forstadsgatan,

sealing device carried out according to this invention is in the first place characterized by the fact that the means, by which the hermetical sealing is effected, is, together with the tightening means required, arranged on the vessel in such a manner that the means first mentioned, when removed from the vessel for the purpose of opening it, does not injure the wall or walls of the vessel nor the cover of the same, so that these parts re: main in an uninjured condition after the opening operation; By this arrangement essential advantages are obtained, among which may be pointed out, that the vessel as well asits cover remains quite intact after the opening of the vessel, so thatboth'may be once more used for storing a vessel content while completely excluding the atmo'sat the- A considerable inconvenience I .hermetlcal sealing dBVlCQS s the cover or both phere. previous one thatthe .very vessel or are spoiled atthe opening of the vessel, so

that/this cannot be used fora continued hermetical storing ofthe vessel content, wh ch will, because. of this, often grow inferlor' in quality or be'spoiled, if it is not used immediately or within a short time after j the opening operation. This inconvenience does not appear at vessels provided with a sealing device according to this invention. Moreover, the sealing means "may be extended beyond the seallng 7 forms a part or ameans joint to'such an amount, that it which is keptin the handor acted upon by it for opening thevessel'.

The annexed drawing shows by way of example different embodiments of this invention. Figure 1 shows, in front view, a canfor preserves provided with a sealing device according to one of these embodiments. Fig. 2 shows a vertical section ofthis can,

of which the foledge,

' The top compressed state, tighten against 101 the coverv border.

while Fig. 3shows said can during the opening operation. Fig. 4; shows a vertical 'section of the top edge of the same can, while Figs. 5, 6 and 7 show vertical sections of modifications of the device shown inFigs. 1

to 4. Fig. 8 shows a front view of a can,

providedwith a further modification of the V arrangement, shown in Figs. 1 to 4.

The essential means for the hermetical sealing of the vessel or the can consists in a comparatively easily flexible, but at the same time strong strip or wire 1 of metal (or other'suitable material), That part of this wire which keeps the vessel sealed, is located in a groove 2, impressed in the can wall in the neighborhood of its top edge.

One end of thewire 1 is twisted together with a middle portion of the'wire so as to maintain the wire stretched in the groove 2.

From this groove'the wire runs down to a second groove 3 lmpressed lnto the can wall about between its top edge and its bottom tained stretched thereby so that the other end of the same is pushed inside and bent down over the 7 wire portion passing into the groove.

edge of the groove 2 is located in the same level as the lower edgeof the cover border, and the wire 1 projects by about half its cross section beyond the exterior side of the can wall (see Fig. 4).

'Tnthe corners, running around the can wall and located between the'wire and the infe- -rior edge of the cover border and between the wire and the can wall respectively, a metal (or a metal alloy) is placed by means of soldering, which metal eifects, together with the wire, the hermetical sealing of the can.

p This hermetical sealing device may be combined with a; device for. a secondary" may,"aloove the groove 2 in the can wall, be

in which groove 3 the wire is main- "sealin of the can. For this purpose'there outside the. exterior side of the can wall, so

that the ring after said operation will, in a the inside Sealing a can by meansof' the described 1 device iscarried out in the following man'- leased, said portion being thereafter used as a handle and exposed to a pull, whereby the solderings 4 around the can are torn up, on account of which the cover may easily be removed. If thereafter the contents of the can or aportion of it is to be kept in the can, the ring 6, after positioning the cover, effects forsome time of the can.

As will be seen,neither the wall of the can nor its cover has been injured at the opening of the can, on account of which theyare quite proper to ,be used once more in the same manner as before. This evidently means a very considerable'advantage in an economical respect. 7

In .the embodiment of this invention shown in Fig. 5 the can wall is provided with an exterior ridge 7 above which there is arranged the Wire 1*, which in this case, has a rectangular cross-section, so that it has the shape of a strip. The lower edge of the an efficient hermeticalsealing border of the cover, when applied, is situated near the wire or strip l and in the corners between the wire or strip 1 and the ridge 7 and between'the wire and the cover border respectively there is soldered a metal or metal alloy 4; Also in this case the wire extends beyond the solderings 4 in order to form a handle at the tearing up of the solderings. Fig. 5 does, however, not show this continuation of the wire, nor the secondary sealing device.

The devices shown in Figs. 6 and 7 might be understood without further description with the aid of what has been set forth as to Fig. 5.

In the device shown in Fig. 8 that part 1 of the sealing and opening means, which at the opening of the vessel is keptin hand or acted upon by it; is formed by that part of a wire, the section of which is unaltered,

while the otherpart 1 of said wire has been rolled out so as to form a strip, which as the strips 1 in Figs. 6 and 7 runs around the joint between the wall of the vessel andits cover and which strip together with atightening means (for instance tin or other metal or metal alloy) keeps the vessel hermetically sealed. p

As .willbe seen from Fig. 8, the one part of the'wirepasses gradually into the other part, whereby a greater safety-against tear ing-01f of the wire between the two parts at.

the opening of the vessel is attained. 7

The "wire part 1", which in this case extends along the wall of the vessel in the height direction of the same and the free end of which enters below the bottom of the vessel, may also have another section. 1' Thein'vention may, asls evident, be can ried out in other manners than those, ind icated by way of example. So, for instance, that portion of the metal wire which is held by the hand when opening the vessel,

may be located in another way at'the vessel or at the cover-of the same. The metal wire may consist of two parts, connected with each other in any; suitable manner, one of a Par s being adapte f ealing e vessel, and the other for opening the same.

Instead of a metal or a metal alloy'there may,.at the wire, be applied any ot hersuitare, moreover, especially cheap, the costs ofthe material required and of the manufacturebeing very low.

efiectedpwithout the l Having now described my invention, what 7 I claim asnew and desire to secure by Letters Patent is;

1. In. a can, the combination withv a can body having an open top andhupper-and lower circumferentialrecesses arranged near the top of the body, an elastic packing located in the upper recess, ofa coverfor said open top having a depending flange embracing the upper portion of the can body and compress ng said. packingto seall the can, a

gaging the lower. edge of the cover flange and extending around the can body, and

imetallic strip located at the-lower recess, en- 1 fusible material sealing the joints between the strip, cover and body.

2. In'acan, the-combination with a body having an open top, having a depending flange embracing the upper portion of thecan body, a strip, recof a cover for said body .tangular in cross section,sealing the meeting other and oneofthe ends being extended lower edgeof thetop and body of; the can, the ends of said strip overlapping one. an-

.into a handle portion, whichiscircular in: cross section and extends downthe. body of the can J and is turned under the bottom of the can body toprotectsaidgend, and fusible r7 sealing material placed along the edges of "said strip.

3; In. a can, the combination-with a exterior said packing, a strip,

having an open top upperand-lower recesses, a -resilient packing located intheupper recess, of a cover forsaidbooly having a depending flange embracing the. upper portion of the body and compressing, rectangular; in crossg section, arranged between the lower edge of the flange and said lower recess and extending entirely around the body, the ends of said strip overlapping one another and one end being extended down the body of the can and forming a handle portion of circular cross section, said handle portion being turned under the bottom of the body to proteet the'free end of the same, and fusible Copies of this patent may be obtained tor five cents each, by addressing the Commissioner of Iatents, V

sealing placed between the edges of the strip 10 ANDERS ANDERSSON ROSENGREN.

Witnesses WILH. Rosevrs'r, KARL. HALLENGREN.

Washington, D. 0." 

